diff options
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 5b0d44f..4dfb9a1 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -835,8 +835,6 @@ exec_new_vmspace(imgp, sv) GIANT_REQUIRED; - stack_addr = sv->sv_usrstack - maxssiz; - imgp->vmspace_destroyed = 1; EVENTHANDLER_INVOKE(process_exec, p); @@ -871,24 +869,20 @@ exec_new_vmspace(imgp, sv) } /* Allocate a new stack */ + stack_addr = sv->sv_usrstack - maxssiz; error = vm_map_stack(map, stack_addr, (vm_size_t)maxssiz, - sv->sv_stackprot, VM_PROT_ALL, 0); + sv->sv_stackprot, VM_PROT_ALL, MAP_STACK_GROWS_DOWN); if (error) return (error); #ifdef __ia64__ - { - /* - * Allocate backing store. We really need something - * similar to vm_map_stack which can allow the backing - * store to grow upwards. This will do for now. - */ - vm_offset_t bsaddr; - bsaddr = p->p_sysent->sv_usrstack - 2 * maxssiz; - error = vm_map_find(map, 0, 0, &bsaddr, - regstkpages * PAGE_SIZE, 0, VM_PROT_ALL, VM_PROT_ALL, 0); - FIRST_THREAD_IN_PROC(p)->td_md.md_bspstore = bsaddr; - } + /* Allocate a new register stack */ + stack_addr = sv->sv_usrstack - 2 * maxssiz; + error = vm_map_stack(map, stack_addr, (vm_size_t)maxssiz, + sv->sv_stackprot, VM_PROT_ALL, MAP_STACK_GROWS_UP); + if (error) + return (error); + FIRST_THREAD_IN_PROC(p)->td_md.md_bspstore = stack_addr; #endif /* vm_ssize and vm_maxsaddr are somewhat antiquated concepts in the |
